这个构建系统在我的机器上工作，基本上它是带有额外选项的默认 C++ 构建系统，

This build system works in my machine, basically its the default C++ build system with the extra options,

{
    "shell_cmd": "g++ -Wall -Wextra -O2 -fwrapv -Wfloat-equal -Wconversion -std=c++17 \"${file}\" -o \"${file_path}/${file_base_name}\"",
    "file_regex": "^(..[^:]*):([0-9]+):?([0-9]+)?:? (.*)$",
    "working_dir": "${file_path}",
    "selector": "source.c++",

    "variants":
    [
        {
            "name": "Run",
            "shell_cmd": "g++ -Wall -Wextra -O2 -fwrapv -Wfloat-equal -Wconversion -std=c++17 \"${file}\" -o \"${file_path}/${file_base_name}\" && \"${file_path}/${file_base_name}\""
        }
    ]
}

MacOs 可以放在 /Users/{user}/Library/Application Support/Sublime Text 3/Packages/User 目录下，C:\Users\{user}\Windows 中的 AppData\Roaming\Sublime Text 3\Packages\User 或 Linux 中的 ~/.config/sublime-text-3/Packages/User.
您可以将文件称为 C++17.sublime-build 之类的名称，以将其与默认构建系统区分开来.

You can place it in /Users/{user}/Library/Application Support/Sublime Text 3/Packages/User directory for MacOs, C:\Users\{user}\AppData\Roaming\Sublime Text 3\Packages\User in Windows or ~/.config/sublime-text-3/Packages/User in Linux.
You can call the file something like C++17.sublime-build to differentiate it from the default build system.